Electric radiator



C. A. HEAD ELECTRIC RADIATOR Filed Feb. 25, 1922 GEL-LIA.

\ WAG Patented Mar. 6, 1923. v

'UNITED STATES PATENT OFFICE.

I CECIL A. HEAD, OI ROYAL OAK, IICEIGAN.

unc'mrc RADIATOR.

application fled l'ebrnary 28, 1982. Serial 10,538,904.

To all whom it may concern:

Be it known that I, Cnon. A. HEAD, a subject of the Kin of England, anda resident of Royal Oa in the count of Oakland and State of Michigan,have invented a new and useful Improvement in Electric Radiators, ofwhich the following is a specification.

My invention relates to electric radiators and its principal ob'ect isto provide a radiator of this type w erein the water supply is retainedin a state of evaporation for substantially the entire length of time ofoperation ofthe radiator.

It is another object of the invention to provide an electric radiatorwhich will radiate a maximum amount of heat in a minimum of time with aminimum supply of electricity.

A further object of the invention is to provide a portable electricradiator wherein the supply of electric current will be automaticallycut oil upon total evaporation of the water supply, thus the unnecessaryexpenditure of electric energy is obviated.

With the preceding and other objects and advantages in mind, theinvention consifls in the novel combination of elements, constructionsand arrangement of parts and operations to be hereinafter full referredto, claimed and illustrated in t e accompanying drawing, wherein:

Figure 1 is a vertical sectional view of an electric radiatorconstructed in accordance with my invention,

Fig. 2 is an end elevation of the same, i

Fig. 3 is a topoplan view of the electrical heating unit em died in theinvention, and

.Fig. 4 is a vertical sectional view of the same. v, Referring to thedrawing in detail wherein similar characters of reference denote similarparts throughout the several views, the numeral 5 designates avertically disosed cylinder or generating chamber in the ower end ofwhich a cup or water reservoir 6 is threaded. Threaded upon the upperend of the cylinder or generating chamber 5 is a closure 7. Extendinghorizontally from the cylinder or generating chamber 5 at diametricallyopposite points are vertically allned radiating tubes 8 having interiorof this cy inder or nerating chamber 5. Communicating witdi the outerends of the radiating tubes 8 are vertically discommumcation with theposed return pipes 9 whose lower ends reoeive the upper ends ofsupporting legs 10. In this embodiment of the invention only two sets ofradiating tubes 8' are illustratedf It is within the scope of myinvention, however, to employ as many sets of these tubes as may befound practical.

My invention provides an improved heat ing unit to vaporize the watercontained in the water reservoir 6. This heating unit embodies arectangular chamber 11 constructed of porcelain or other non-conductingmaterial having a flange 12 at its upper edge which is secured to thebottom of the cup or reservoir 6 by'fastenings 13. Packing 14 isinterposed between the flange 12 and bottom of the cup or reservoir 6 toafford a water tight joint between these parts. Arranged in the chamber11 and spaced from the sides thereof are positive and negativeelectrodes 15 and 16 respectively, the latter being electricallyconnected with electricity conductors 17 in circuit with any suitablesource of electrical energ not shown. As shown in Fig. 3, each 0 theelectrodes 15 and 16 comprises a longitudinal bar 18 from which aplurality of spaced right-angularly disposed fins or plates 19 extend.These plates or fins of these electrodes have intertting engagement andare spaced from each Carried by the cup other. or water reservoir 6 is alaterally extendlng water gage 20 whereby to indicate the liquid levelof the contents of the cup or water reservoir.

In the operation of my improved heater the water from the cup orreservoir 6 enters the 5 aces between the fins or'gplates 19 and there ycom letes the circuit through the electrodes. e electric current passingthrough the" water and finding resistance therein, quickly boils andevaporates the same and steam rises in the cylinder or generatingchamber 5, thence circulating through the radiating tubes 8. As thewater is condensed it passes through the lowermost tubes 8 and flowsinto the cup or generating chamber 6 to be again vaporized. Shouldtheentire bod of water become totally vaporized the circuit between theelectrodes would be'broken. It will be thus seen that the supply ofelectrical energy will only be consumedwhile the radiator containswater.

It is to be understood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the some, and thatvarious changes in the shape,

size and arrangement of parts may be resorted to Without departing fromthe spirit of the invention or the scope of the subioined claims.

Having thus described my invention, what I claim as new and desiretosecure and protect by Letters Patent of the United States 1. Anelectrical heater including a receptacle having an insulated bottom, apair of electrodes supported on the bottom and each including a bar andspaced right-angularly disposed plates having interfitting engagementand spaced from each other, the 15 circuit between the electrodes beingcompleted by the body of Water contained in the receptacle, and brokenupon the exhausreservoir.

" CECIL A. HEAD

